The chorus I learned in the Navy went something like:

"We'll rant and we'll roar like true British sailors
We'll rant and we'll roam across the salt main
For Hawkes to command in the Channel of old England
So farewell Spanish Ladies 'til we see you again."

I think at the time Minorca was occupied by the British

The reference to "Ushant to Scilly" in the better known and more commonly sung chorus has nothing to do with the direction the ship was sailing in. In most conflicts with France the main task of the Channel Fleet was to blockade the French ports - a prolonged and extremely boring task. At times the weather caused the blockading squadrons off station. The distance between Ushant and Scilly was burned into the minds of Royal Navy sailors as the ships ran for shelter in Torbay only to beat back to regain their blockade stations.